Which chemical change is most likely to involve bubbling or an odor? a. temperature decrease b. color change c. gas production d. precipitate formation

2points why do scientists need governmental funding? o a. government politicians ask all the important scientific questions. o b. scientists have to pay taxes to the government on the money they make. o c. the cost of doing scientific research can be very high. o d. the government is controlled by scientists. submit

Significant figures are digits read directly from the measuring instrument plus one more digit, which is __ by the observer.

Aperfume bottle is dropped in the corner of a room. the odor of the perfume can be detected on the other side of the room. which statement best describes this observation?